Compiz grid edges do not work with nvidia twinview

[Uli Tillich]

Binary package hint: compiz

Ubuntu 11.04 Natty - all updates installed -
Compiz Version: 1:0.9.2.1+glibmainloop4-0ubuntu8
Nvidia Drivers: 260.19.29-0ubuntu1

The Compiz Grid plugin, which is activated by default in Unity does not recognize edges between monitors with nvidia Twinview (monitors set side by side). Keyboard shortcuts (CRTL+ALT+"right arrow") work perfectly.

Expected behavior:
When dragging a window to the right edge of the left monitor, once the mouse is near the edge, compiz grid should give a preview for resizing the window to fill the right side of the left monitor (similar to when it is dragged to the left edge). Once the mouse passes to the right monitor it should give a preview to resize to the left half of the right monitor.

Current behavior:
The "edges" between monitors are completely ignored. Resizing windows works fine when dragging to either the left edge of the left side monitor or the right edge of the right side monitor. Keyboard shortcuts work as intended.

[Gord Allott (gordallott)]

Confirmed here using twinview, dragging to the left on my left monitor works, dragging to the right on the right monitor works but nothing else. i would imagine that if you have three monitors the center one would not have any behaviour at all.

[Sam Spilsbury (smspillaz)]

On Wed, Feb 9, 2011 at 6:36 PM, Gord Allott <email address hidden> wrote:
> Confirmed here using twinview, dragging to the left on my left monitor
> works, dragging to the right on the right monitor works but nothing
> else. i would imagine that if you have three monitors the center one
> would not have any behaviour at all.
>

Indeed. We use global screen edges for detection.

What should be done is to use output edges instead. That's easy enough.

> ** Changed in: compiz (Ubuntu)
>       Status: New => Confirmed
>
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> https://bugs.launchpad.net/bugs/710912
>
> Title:
>  Compiz grid edges do not work with nvidia twinview
>
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--
Sam Spilsbury

[David Barth (dbarth)]

Confirmed by Gord

[Sebastien Bacher (seb128)]

It doesn't work either on a 1 screen config with intel here

[Sebastien Bacher (seb128)]

sorry, different issue

[Uli Tillich (utillich)]

Has the fix landed yet?
It is not working for me with all updates installed.